Implante writes, "I'm a TA for a first year med school class and made this module on how antibiotics have driven the development of the MRSA 'superbug' that you hear about in the news. Nothing like making a module for medical students at a 3rd grade reading level. Enjoy!"
And enjoy I did! I had a general idea of how the antibiotic resistance arms-race worked, but watching this gave me a much clearer, sharper understanding -- including the curious and perverse reason that MRSA is endemic to hospitals but not the wider world (spoiler alert!).
Development of resistant Staphylococcus aureus over time (Thanks, Implante, via Submitterator)